Income Taxes (Schedule of Income Taxes Current and Deferred) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income Tax Disclosure [Abstract]
Current federal	$ 430	$ 387	$ 430
Current state and local	27	20	63
Current non-U.S.	13	17	12
Current total	470	424	505
Deferred federal	124	92	103
Deferred state and local	28	29	18
Deferred non-U.S.	6	7	(1)
Deferred total	158	128	120
Total provision	$ 628	$ 552	$ 625